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3 years ago

7. WILL MARK BRAINLIEST!! HELP!

Mathematics

1 answer:

Grace [21]3 years ago

3 0

Answer:

the correct answer is B

Step-by-step explanation:

you can solve by factoring

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You are designing an amusement park ride with cars that will spin in a circle around a center axis, and the cars are located at

Andrei [34K]

Answer:

144 people.

Step-by-step explanation:

Let n be the vertices, where cars are located.

We have been given that the sum of the measures of the angles' vertices is 6120°.

Let us find the number of vertices using formula:

$\text{Sum of all interior angles of a polygon with n sides}=180(n-2)$ .

Upon substituting the given sum of the measures of the angles in this formula we will get,

$6120=180(n-2)$

Using distributive property $a(b+c)=a*b+a*c$ we will get,

$6120=180n-360$

Adding 360 to both sides of our equation we will get,

$6120+360=180n-360+360$

$6480=180n$

Upon dividing both sides of our equation by 180 we will get,

$\frac{6480}{180}=\frac{180n}{180}$

$36=n$

As the cars are located on the vertices of regular polygon, so there will be 36 cars in the ride.

We are told that each car holds a maximum of 4 people, so the number of maximum people who can ride at one time will be equal to 4 times 36.

$\text{Maximum number of people who can be on the ride at one time}=4\times 36$

$\text{Maximum number of people who can be on the ride at one time}=144$

Therefore, the maximum number of people who can be on the ride at one time is 144 people.

5 0

3 years ago

What is the remainder of 245÷32

OverLord2011 [107]

It is 7.7 because u need to round it to the neares but not everytime;)
Brainestt??;)

7 0

3 years ago

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What is the first step in solving the inequality StartFraction m minus 2 Over 6 EndFraction < –1? A.Multiply both sides by 6.

Sunny_sXe [5.5K]

Answer:

Multiple both sides by 6

Step-by-step explanation:

6 0

3 years ago

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In a random sample of 7 residents of the state of Maine, the mean waste recycled per person per day was 1.4 pounds with a standa

ivolga24 [154]

Answer:

a) The 95% confidence interval for the mean waste recycled per person per day for the population of Maine is between 1.19 and 1.61 pounds.

b) $T_c = 2.4469$

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 7 - 1 = 6

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2.4469, and the answer to question b is $T_c = 2.4469$

The margin of error is:

$M = T\frac{s}{\sqrt{n}} = 2.4469\frac{0.23}{\sqrt{7}} = 0.21$

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 1.4 - 0.21 = 1.19 pounds.

The upper end of the interval is the sample mean added to M. So it is 1.4 + 0.21 = 1.61 pounds.

The 95% confidence interval for the mean waste recycled per person per day for the population of Maine is between 1.19 and 1.61 pounds.

7 0

3 years ago

Which equation could represent the relationship shown in the scatter plot?

BigorU [14]

Answer:

y = 7/8x + 6

-Hope This Helps

6 0

3 years ago

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7. WILL MARK BRAINLIEST!! HELP! ​

7. WILL MARK BRAINLIEST!! HELP!